supply of 01) supply of items used for maintenance high pressure air line and water pipe line connecting purpose .1) brass screwed end ball valve 3/4 inch .02) supply of items used for maintenance high pressure air line and water pipe line connecting purpose. 1) ball valve 3/4 inch nominal size stainless steel grade 316 screwed end03) supply of items used for maintenance high pressure air line and water pipe line connecting purpose. 1) 1/2 inch nominal size screwed end stainless steel grade 316 ball valve . , supply of items used for maintenance high pressure air line and water pipe line connecting p urpose . 1) brass screwed end ball valve 3/4 inch . [ warranty period: 30 months after the date of deliver y ] ] , supply of items used for maintenance high pressure air line and water pipe line connecting p urpose. 1) ball valve 3/4 inch nominal size stainless steel grade 316 screwed end [ warranty period: 30 months after the date of delivery ] ] , supply of items used for maintenance high pressure air line and water pipe line connecting p urpose. 1) 1/2 inch nominal size screwed end stainless steel grade 316 ball valve . [ warranty period: 30 months after the date of delivery ] ]